54780720 has 160 divisors (see below), whose sum is σ = 180940800. Its totient is φ = 13685760.

The previous prime is 54780707. The next prime is 54780721. The reversal of 54780720 is 2708745.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54780721) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 275181 + ... + 275379.

It is an arithmetic number, because the mean of its divisors is an integer number (1130880).

Almost surely, 2^54780720 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 54780720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (90470400).

54780720 is an abundant number, since it is smaller than the sum of its proper divisors (126160080).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

54780720 is a wasteful number, since it uses less digits than its factorization.

54780720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 283 (or 277 counting only the distinct ones).

The product of its (nonzero) digits is 15680, while the sum is 33.

The square root of 54780720 is about 7401.3998675926. The cubic root of 54780720 is about 379.7891720641.

The spelling of 54780720 in words is "fifty-four million, seven hundred eighty thousand, seven hundred twenty".